1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe44b74c6349937b4465d72eab6668926ad2d142d5c16afff0d55b6fd4f591d3f. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/80d8b542-3745-4c36-9979-fae6be76635e.json and https://artists.proofprofile.net/proofs/artist/80d8b542-3745-4c36-9979-fae6be76635e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4400ce6dd2377d850495265b26c85f3296cdda55b70348cb40edf339113ece92. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N22163391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x033e7f1f611f4a74ac61e4010694ec69af74258c924765939b11e4948141602e. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N22163392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe18c5e65c0a5e2166cc59109d012ba02987ed68e7029caa0ff5a861f37f767cc. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEZ651606953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbc2fabff32ef80f46ce02436c16bed8f1cb2f2d76c350304898a3fa96d2e072. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEZ651606954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71b0c12ac3bcbaf5ec380233401d866fb3d6dbd7674dd4e8604a9e294efc63b4. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEZ651606955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedb5dbdbdaf6e695c59f819c4e7ff6e85c5189d0ba4f63035588db00444c89ac. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEZ651606956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbafea88436cbb7d0505f89b6f3f187a17889e692c2ab84c76a4bfc567e048f98. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEH900500035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd80b2ef34548bfebec099bcd26233d0e0f7c35680622081d35e41ef3ccf039ce. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEH900500037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf923e8f71fc212ff53bce1fc341d12428400a193cc167731ca3630b765cfafe. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEH900500038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x040ae34304f0a0457d6f6acf93d37532270de24a0f27cd2a2c9df32dd3882577. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEZC62333292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb8d761bf188bf47a0770db216fae28e6f21398d9a3ef0d4207f991f31f2d09a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEZC62359767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x040ae34304f0a0457d6f6acf93d37532270de24a0f27cd2a2c9df32dd3882577. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEZC62333292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf76c6f4cd49069cbf5c2554b5975f54010e254fa477d2ce142d779c4c218213. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEZC62342026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd18e78abed8d0c931de7acc577f68c52ea6c837df196a15566e62ccf7b4a8636. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEZC62384946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21eb323cfd79b984372ba14bfc4ea9ede292c6835fba96a9303083f701f8fc1f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEZC62384947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c6a5030b5026202ce01701e24cece11debb825cd88a410180f7203dce3aa83d. Chain 2 (Bitcoin): anchored in block 960305 (2026-07-30T20:14:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEZC62384948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19de732e574e74e22f563ae31f3dfac7e37ac8957c76ab14f0ecfa54f07dade1. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEZC62384949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ff4d51ef6a96880e6ba7e6c7afceb4ed9d75a5c096ab9f685bcfe40467e5d67. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEZC62371457.
New Era (feat. Johnny Strange, Culcha Candela, Criminal, Paco Mendoza, Raggabund, Caramelo, Conscious Fiyah, Lobstarr, Les Babacools, Vybez Ferdl, Inhumane, Headcornerstone) [More Than Reggae
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f5b5e1f9a6cb34f7e5b153cec583c719b81702166998b0b093b1c0ba73ec4c9. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEBL60467733.
Get This Party Started - Pink Elektro Pop/Ska Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6df07f048cb79cf18e6f424d60b83730e880854b1d4b2741321ed1b61963745. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEBL60467735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1a80d5cdb38ece22f918e84322debe73a99961c072a7606624ccf00ca039615. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEBL60467738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x063de51a1d522d39642457ea3915af06ad29957af2f7cb4c5facd4e2d7a24285. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEBL60467744.
Stamina Riddim Selection Vol.1: Masta Riddim
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d60feb54bd6de026bec9705251211cfdea32928dbf88e64d2711aeaabab95cd. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEFY11006106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x544988d11584d5c5092eadec53a6590a9822da2656397108095ba37f769450ba. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEFY11006112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d95a58a8f591ff7675147718d2a5daf119938860b59898ec2fa39ba4075ce82. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEFY11006118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cae6d1687590eb6e96cdf5fb774ff863ad84b118437add67f13dc63c5e7b9a8. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEH900500052.